Newsdee wrote:ZXGate is the base of the ZX81 core in the MiST... so it would depend on how modular the TRS80 part is.

Im not by any fantasy an FPGA person but this is the comment about the TRS80 part:

ZXGATE - TRS80

ZXGATE's TRS80 comes in two flavours, one single chip with level 1 ROM and one with with external RAM and ROM and level 2 ROM.There is some problem with the level 2 implementation: text is not displayed properly. This is probably due to the fact that it was based an a Video Genie clone and has a Video Genie character ROM. There are no ROMs included. Don't ask us for the ROMs, we will not give them to you! If you don't have a TRS80 you have to find them elsewhere.

Download and synthesize it in the same way as for ZX01 but use the module name "trs" instead of "zx".

Something's not right. My capture card recognizes it as 1280x720 and shows a weird picture split in four parts. Top left has the actual image, top right has blinking the image and green, and the bottom half is black.

For what its worth I get a full screen of readable text on my LCD samsung 715v (F12 menu item "scanlines" on/off work with either setting) .. the option you are referring to is it in the menu for the core or the mist.ini option thing?

ericgus wrote:For what its worth I get a full screen of readable text on my LCD samsung 715v (F12 menu item "scanlines" on/off work with either setting) .. the option you are referring to is it in the menu for the core or the mist.ini option thing?

Here's a somewhat usable version: https://drive.google.com/open?id=0ByKxevpwe6i9UVkxWXNjaEpMeEEIt's a TRS-80 Model 1 with 2KB of RAM and the level 1 ROM. That's the earliest base machine. (<- oops, I got that wrong. It should be 4KB of RAM. Maybe that's why this core is crashing after a while sorry about that, I'll fix it in the following release.)It's very early and it can't do much without a way to load external programs.

Could people that have used the real machine tell us if this is normal:- when you press Backspace (clear), it clears the screen but whatever you typed is still "active" (you can type return)- if you type too fast, it misses keypress- NEW followed by P.M. answers 1535 (available memory for the 2KB version, is this correct?)- is it too fast? I clocked the Z80 @4MHz that's more than twice the original speed

and finally, can someone report back about the scandoubler=off option? I aligned the clock with Till example so now we have a pixel clock @12.5MHz on TV and 25MHz on VGA. Let me know how that works.

Update well one thing I can tell you is my keyboard doesnt seem to work.. (F12 does work though, f12 menu keyboard test works fine too) .. but no key presses seem to go to the core), looks like scanlines is defaulted to ON as well.

sebdel wrote:and finally, can someone report back about the scandoubler=off option? I aligned the clock with Till example so now we have a pixel clock @12.5MHz on TV and 25MHz on VGA. Let me know how that works.

On my old CRT TV (PAL and NTSC-capable) via SCART with scandoubler_disable=1 it looks like this. The ready prompts are flickering so that you can't really read anything, it looks better on this photo than in reality.But still: great work already, thanks!

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